1. How Drupal works -- 2. Writing a module -- 3. Hooks, actions, and triggers -- 4. The menu system -- 5. Working with databases -- 6. Working with users -- 7. Working with nodes -- 8. Working with fields -- 9. The theme system -- 10. Working with blocks -- 11. The form API -- 12. Manipulating user input : the filter system -- 13. Searching and indexing content -- 14. Working with files -- 15. Working with taxonomy -- 16. Caching -- 17. Sessions -- 18. Using jQuery -- 19. Localization and translation -- 20. XML-RPC -- 21. Writing secure code -- 22. Development best practices -- 23. Optimizing Drupal -- 24. Installation profiles -- 25. Testing -- Appendix A. Database table reference -- Appendix B. Resources.